How many letters does the top answer for “composer of a survivor from warsaw” have?

The most common answer is schoenberg (10 letters).

Crossword clue: composer of a survivor from warsaw

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

schoenberg 10 letters wd-fact-v3

United States composer and musical theorist (born in Austria) who developed atonal composition (1874-1951)

author of a survivor from warsaw 50% similar → schoenberg

composer of warsaw concerto 50% similar → addinsell

wrote a survivor from warsaw 50% similar → schoenberg